1.

In How Many Different Ways The Letter Of Words Optical Can Be Arranged So That All The Consonants Come Together?

Answer»

The word OPTICAL has 7 letters which have 4 consonants PTCL, so if all consonants ALWAYS come together then,

OPTICAL can be arranged as (PTCL) OIA, where all consonants can be CONSIDERED as a single letter

Hence we can arrange it in !4 WAYS = 4*3*2*1= 24 ways

Again PTCL also arrange in !4 ways= 4*3*2*1= 24 ways

So total no of ways OPTICAL letters can be arranged = 24*24= 576.

The word OPTICAL has 7 letters which have 4 consonants PTCL, so if all consonants always come together then,

OPTICAL can be arranged as (PTCL) OIA, where all consonants can be considered as a single letter

Hence we can arrange it in !4 ways = 4*3*2*1= 24 ways

Again PTCL also arrange in !4 ways= 4*3*2*1= 24 ways

So total no of ways OPTICAL letters can be arranged = 24*24= 576.



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